#!/usr/bin/env python3

import sys

'''
Example usage:
 python3 rna_cleaner_merge.py out_work.py rna_booleans_work.py
'''


def main():

    def work_line_id(line):
        return line[2].split("|")[-1], line[3]  # class/from

    if not (sys.argv[-1].endswith(".py") and sys.argv[-2].endswith(".py")):
        print("Only accepts 2 py files as arguments.")

    sys.path.insert(0, ".")

    mod_from = __import__(sys.argv[-1][:-3])
    mod_to = __import__(sys.argv[-2][:-3])

    mod_to_dict = dict([(work_line_id(line), line) for line in mod_to.rna_api])
    mod_from_dict = dict([(work_line_id(line), line) for line in mod_from.rna_api])

    rna_api_new = []

    for key, val_orig in mod_to_dict.items():
        try:
            val_new = mod_from_dict.pop(key)
        except:
            # print("not found", key)
            val_new = val_orig

        # always take the class from the base
        val = list(val_orig)
        val[0] = val_new[0]  # comment
        val[4] = val_new[4]  # -> to
        val = tuple(val)
        rna_api_new.append(val)

    def write_work_file(file_path, rna_api):
        rna_api = list(rna_api)
        rna_api.sort(key=work_line_id)
        file_out = open(file_path, "w")
        file_out.write("rna_api = [\n")
        for line in rna_api:
            file_out.write("    %s,\n" % (repr(line)))
        file_out.write("]\n")
        file_out.close()

    file_path = sys.argv[-2][:-3] + "_merged.py"
    write_work_file(file_path, rna_api_new)

    if mod_from_dict:
        file_path = sys.argv[-2][:-3] + "_lost.py"
        write_work_file(file_path, list(mod_from_dict.values()))
        print("Warning '%s' contains lost %d items from module %s.py" % (file_path, len(mod_from_dict), mod_from.__name__))


if __name__ == "__main__":
    main()
